Anybody who thinks a vaccine passport will simply note one’s vaccination status has no idea how government actually works. From Dr. Michael Yeadon at theburningplatform.com:

It is very important that people understand what is happening here. The intention is to introduce vaccine passports everywhere. But this is a disguise. It’s a world’s first digital common-format, globally-interoperable ID system with an editable health flag (vaccinated Y or N).
It makes no one safer. If you’re vaccinated, you’re protected & are not made safer by knowing others immune status.
As in Israel, you will be compelled to present a valid VaxPass in order to access defined facilities or access services. No VaxPass, you’re denied.
This system only needs 50%+ of the adult population to start up because of its huge, coercive power on the unvaccinated.
It’s illegal, medical apartheid.
A VaxPass System like this will give to those controlling the database & it’s algorithms TOTALITARIAN TYRANNY over us all.
The ONLY way to stop this biosecurity nightmare is to NOT GET VACCINATED FOR NON-MEDICAL REASONS!!!
I fear that, if our adversaries gain this absolute control, they will use it to harm the population. There’s no limit to the evil which will flow from this strategic goal.